Armature for dynamos and motors



(No Model.)

G A WELLES, Jr ARMATURE FOR DYNAMOS AND MOTORS.

Patented Mar. 3, 1896.

UNITED STATES PATENT OFFIC GEORGE A. VELLES, JR OF NEXV YORK, N. Y., ASSIGNOR TO THE C. & C. ELECTRIC COMPANY, OF NEW JERSEY.

SYECIFIGATION forming part of Letters Patent No. 555,628, dated March 3, 1896.

Application filed April 12,1895. Serial No; 545,437- (No model.)

To all whom it may concern.-

Be it known that I, GEORGE A. WELLEs, Jr., of the city, county, and State of New York, have invented a certain new and useful Improvement in the Construction of Armatures for Dynamos and Motors, of which the following is a full description.

The accompanying drawings illustrate the invention, of which Figure 1 is a vertical side view of the arma. ture complete having a section broken away- Fig. 2 is a View of this section; Fig. 3, a pcripheral view of the armature, part of it containing the winding and the other part showing the place upon which the coils are wound.

The body of the armature consists of a series of thin plates A, insulated from each other and bolted together in segments, which when assembled and brought together end for end form the body of the armature-ring. The plates constitutingthese segments are of equal length; but when brought together they are alternately arranged so that one plate projects from the end and the next recedes, so that an adjoining segment corresponding in form will fit into the openings thus left and unite therewith to make a compact ring.

The plate a surrounds the armature on one side and the plate a on the other side and are secured by insulated bolts which pass through the series of thin plates A, and around them all is placed the coilD of the armature. These plates at a are also formed in segments and rabbeted at their ends to overlap and make a continuous surface when in place.

In constructing this armature the thin plates a a are first put together, as above described, in as many segments of a circle as maybe desired. Upon a form or bobbin cor-' as shown at a These spaces serve to make a place for the fingers of the outer retainingrings. B is one of these rings which passes around on one side of the armature, and B is another ring for the same purpose on the opposite side, both bolted to the rings a and a and hold the parts rigidly together. The rings B B are provided with fingers 12 which enter the open spaces a on the periphery of the armature. The ring B is also provided with bolt-holes Z) to receive the bolts which secure the radial arms of a spider c. This spider has an opening for passing over the shaft. It is split and is secured to said shaft by means of the bolt b As thus constructed, it will be seen that the armature is composed of sections upon which the winding is. placed and the sections then fitted to their places and the retaining-plates B and B secured to the side, leaving the complete armature held and supported by the spider G and projecting from the plate to cooperate with the pole-pieces of a suitablyconstructed magnet.

What I claim, and desire tosecure by Letters Patent, is-

1. A ring-armature for a dynamo or motor built up in segmental sections and provided with coils so placed thereon that spaces are left on the outer periphery thereof, in combination with a circular retaining-ring secured at one side of said armature and provided with fingers arranged to enter said spaces, whereby the segmental sections are held and secured together.

2. A ring-armature for a dynamo or motor, built up in segmental sections, and provided with coils so placed thereon that spaces are left on the outer periphery thereof, in combination with a circular retaining-ring secured at one side of said armature and provided with fingers arranged to enter said spaces, whereby the segmental sections are held and secured, and a spider provided with radial arms secured to said retaining-ring.

3. A ring-armature for a dynamo or motor built up in segmental sections and provided with coils so placed thereon that spaces are left on the outer periphery thereof, in combination with two circular retaining-rings secured one to eaehside of said armature andprovided and State of New Jersey, this 11th day of with fingers arranged to enter the spaces on April, A. D. 1895. the outer Jeri )her thereof, Whereb Y the se 1 7 i mental sedtiods are held and seeul'edh'adialli g GEORGE 5 and a spider with radial arms secured to one XVitnesses:

of said retaining-rings. DAVID XV. BARNES,

Signed at Garwood, in the county of Union IGN SIMONS, J r. 

